menstruation is the release of the egg which happens monthly, ever 33 days but

the women cannot control this, it is the parasympathetic nervous system. our slave wiring that we do not control,, that hardwires us into the Matrix

although women who are very intense athletes stop menstruating and thus do not produce the gamete or the gamete is delayed, or fasting, or bad enviroment , bad environment is sign not to reproduce